Study on tool wear for mircomilling of 6061 aluminium alloy

2nd International Workshop on Materials Science and Mechanical Engineering

机械制造;材料科学

Wang, W.H.^1 ; Cheng, X.^1 ; Sun, Q.L.^1 ; Wang, F.^1 ; Yang, X.M.^1

Shandong University of Technology, Zibo

255049, China^1

关键词: 6061 aluminium alloy;    Axial depth of cut;    Cemented carbides;    Milling parameters;    Optimized parameter;    Orthogonal experiment;    Processing parameters;    Tool durabilities;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/504/1/012084/pdf
DOI  :  10.1088/1757-899X/504/1/012084

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Tool wear is one of the key points of studies onmicromilling, which affects tool durability and milling efficiency. In this paper, the two-flute cemented carbide end mills with coating TiAlN are used to conduct the experimental studies on the tool wear inmicromilling process for 6061 aluminium alloy material. The wear form and wear mechanism of tools are analyzed. The influence sequence of key parameters on tool wear and the optimized parameters combination are obtained by the orthogonal experiment results analyses. The results show that whenmicromilling 6061 aluminium alloy, the main wear forms of the tools are coating peeling and tip breakage, and the wear mechanism is adhesive wear. The significance order of key milling parameters for the wear band width of the side edge from large to s mall is radial depth of cut a e, feed per tooth f z and axial depth of cut a p. The optimized parameters combination which can obtain the minimize tool wear is a e = 300 μm, f z = 1 μm and a p = 150 μm. In actual machining, the tool life can be improved by selecting suitable processing parameters. The results of this study can be used as a reference for the selection of parameters inmicromilling.